Product Tested

front label

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back label

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Company and Product Information

Corporate Office:
P.O. Box 928
Glenview, IL 60025

Website(s): No Websites Found



The Petroleum Quality Institute of America (PQIA) is an independent resource for information and insights on the quality of lubricants in the marketplace. Our mission is to serve the consumer of lubricants by randomly sampling and independently testing lubricants taken from the field. Test results are posted along with the brand names on the PQIA website. This webpage provides an analysis on the brand detailed below.

The following are the test results for the sample examined.

10W-30 Motor Oil

Viscosity Grade: "10W-30"
Labeling: No API Service Classification on Label

Manufactured by: XPRESS LUBE PRO in Glenview, IL

Purchased at: Rockville, MD

Date of purchase: 7/1/2015


Website(s): No Websites Found

Test Results and Assessment:


The results of the tests conducted on this sample do NOT meet the SAE J300 specifications for the SAE Viscosity Grade listed on the product label. The Kinematic Viscosity @ 100°C is 49% lower than the minimum viscosity specification for this SAE grade, and the Low-Temperature Cranking Viscosity is 71% lower than the maximum viscosity specification for this SAE grade. In addition, the organometallic additive levels in this sample indicate the product is NOT suitable for use in the majority of automobile engines currently on the road, and the metal analysis results indicate the product may be contaminated with used oil and abrasive material. Use of this product in modern automobile engines will likely cause harm to the engine. The label on this product does not list any API Service Category.

bottle icon Physical Properties pass
Elemental Analysis pass
Labeling warning

Note: Although laboratory tests alone cannot be used to establish if engine oil meets an API Service Category, they can be used to determine if it doesn't.

PHYSICAL TESTS (click for test details) - a Standard XPRESS LUBE PRO
TBN, mg KOH/g (ASTM D2896) 1.79
Viscosity @ 100ºC, cSt (ASTM D445) 9.3 to <12.5 4.7
Viscosity @40ºC, cSt (ASTM D445) 24.5
Viscosity Index (ASTM D2270) 110
Viscosity @-25ºC mPa s (cP) (ASTM D5293) 7,000 Max 2014
ELEMENTAL ANALYSIS (click for test details) - a, b
Calcium 29
Magnesium 1
Phosphorus, ppm   60
Zinc, ppm 55
Molybdenum,  ppm 0
Barium, ppm 2
Boron, ppm 1
Silicon, ppm 22
Potassium, ppm 5
Manganese, ppm 0
Titanium, ppm 0
Copper, ppm 4
Sodium, ppm 5
Vanadium, ppm 0
Silver, ppm 0
Aluminum, ppm 2
Chromium, ppm 0
Iron, ppm 32
Nickel, ppm 0
Lead, ppm 0
Antimony, ppm 1
Tin, ppm 0
  1. Standards, shown in yellow are established by API, SAE and others.
  2. Test Method for metal analysis is ASTM D5185.
  3. This specification is expressed to two significant figures, therefore results up to 15.5 are considered on specification.